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R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE

D-(-)-Pantolactone

CAS: 599-04-2

Molecular Formula: C6H10O3

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R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE - Names and Identifiers

Name D-(-)-Pantolactone
Synonyms D-(-)-Pantolactone
(R)-(-)-PANTOLACTONE
(R)-()-β,β-Dimethyl-α-hydroxy-γ-butyrolactone
R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE
R(-)-2-HYDROXY-3,3-DIMETHYL-GAMMA-BUTYROLACTONE
(R)-DIHYDRO-3-HYDROXY-4,4-DIMETHYL-2(3H)-FURANONE
(R)-(-)-DIHYDRO-3-HYDROXY-4,4-DIMETHYL-2(3H)-FURANONE
(R)-(-)-BETA,BETA-DIMETHYL-ALPHA-HYDROXY-GAMMA-BUTYROLACTONE
(R)-(-)-ALPHA-HYDROXY-BETA,BETA-DIMETHYL-GAMMA-BUTYROLACTONE
CAS 599-04-2
EINECS 209-963-3
InChI InChI=1/C6H10O3/c1-6(2)3-9-5(8)4(6)7/h4,7H,3H2,1-2H3
InChIKey SERHXTVXHNVDKA-BYPYZUCNSA-N

R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE - Physico-chemical Properties

Molecular FormulaC6H10O3
Molar Mass130.14
Density1.1066 (rough estimate)
Melting Point91°C(lit.)
Boling Point120-122°C15mm Hg(lit.)
Flash Point120-122°C/15mm
Water Solubilityalmost transparency
Solubility Water, ethanol
Vapor Presure0.3-3.28Pa at 15-35℃
AppearanceCrystals or Crystalline Powder
ColorWhite
Merck14,7013
BRN80957
pKa13.12±0.40(Predicted)
Storage Condition2-8°C
SensitiveHygroscopic
Refractive Index-50.8 ° (C=2, H2O)
MDLMFCD00005392
Physical and Chemical PropertiesHygroscopic crystallization (benzene/petroleum ether, or sublimation). Melting point 80(92 ℃ ), boiling point 130 ℃ /2.4kPa, soluble in water, soluble in ethanol, ether, chloroform, carbon disulfide, benzene. R-type melting point 92 ° C.,[α]-50.7 °(C = 2.05,H2O),S-type melting point 91 ° C.,[α] 50 °(C = 2.00,H2O).
UseUsed as a pharmaceutical Intermediate

R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE - Risk and Safety

Safety DescriptionS22 - Do not breathe dust.
S24/25 - Avoid contact with skin and eyes.
WGK Germany1
FLUKA BRAND F CODES3-10
TSCAYes
HS Code29322090

R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE - Upstream Downstream Industry

Raw MaterialsMethyl alcohol
Formaldehyde
Sulfuric acid
Sodium cyanide

R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE - Introduction

Hygroscopic crystallization (benzene/petroleum ether, or sublimation). Melting point 80(92 ℃ ), boiling point 130 ℃ /2.4kPa, soluble in water, soluble in ethanol, ether, chloroform, carbon disulfide, benzene. R-type melting point is 92 ℃,[α]-50.7 (C = 2.05,H2O),S-type melting point is 91 ℃,[α] 50 (C = 2.00,H2O).
Last Update：2022-10-16 17:26:52

R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE - Reference Information

LogP-0.973--0.46 at 22.5-25℃ and pH7.1
EPA chemical substance information information provided by: ofmpeb.epa.gov (external link)
biological activity D-(−)-Pantolactone is a degradation product of pantothenic acid. pantothenic acid is a water-soluble essential vitamin.
Use an intermediate of calcium pantothenate.
used as pharmaceutical intermediates
used in the synthesis of D-calcium pantothenate, D-Panthenol.
production method condensation of isobutyraldehyde with formaldehyde to produce α,α-dimethyl-β-hydroxypropanal, the latter and hydrocyanic acid in calcium chloride with the participation of further condensation hydrolysis, acidification, internal esterification of the product.
Last Update：2024-04-09 02:00:09
R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE
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Email: r@reformchem.com
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Nantong Reform Petro-Chemical CO., LTD.
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Product Name: D-(-)-Pantolactone Request for quotation
CAS: 599-04-2
Tel: +86-17551318830
Email: r@reformchem.com­
Mobile: +86-17551318830
QQ: 3785839865 Click to send a QQ messageSend QQ message
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Spot supply
Product Name: Dexpanthenol Impurity 1 Visit Supplier Webpage Request for quotation
CAS: 599-04-2
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
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Wechat: 15671228036
Jiangsu Pules Biotechnology Co.,Ltd.
Spot supply
Product Name: D-(-)-Pantolactone Request for quotation
CAS: 599-04-2
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: D-(-)-Pantolactone Request for quotation
CAS: 599-04-2
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Shanghai Yuanye Bio-Technology Co., Ltd.
Spot supply
Product Name: D-(-)-Pantolactone Visit Supplier Webpage Request for quotation
CAS: 599-04-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
Zouping Mingxing Chemical Co., Ltd.
Product Name: D-(-)-Pantolactone Request for quotation
CAS: 599-04-2
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987 Click to send a QQ message
Wechat: 13605431940
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View History
R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE
Raw Materials for R(-)-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE
Methyl alcohol
Formaldehyde
Sulfuric acid
Sodium cyanide
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